12113423722 has 4 divisors (see below), whose sum is σ = 18170135586. Its totient is φ = 6056711860.

The previous prime is 12113423713. The next prime is 12113423741. The reversal of 12113423722 is 22732431121.

It is a Cunningham number, because it is equal to 110061²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12113423721 + 1 = 110061^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3028355929 + ... + 3028355932.

Almost surely, 2^12113423722 is an apocalyptic number.

12113423722 is a deficient number, since it is larger than the sum of its proper divisors (6056711864).

12113423722 is an equidigital number, since it uses as much as digits as its factorization.

12113423722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056711863.

The product of its digits is 4032, while the sum is 28.

Adding to 12113423722 its reverse (22732431121), we get a palindrome (34845854843).

The spelling of 12113423722 in words is "twelve billion, one hundred thirteen million, four hundred twenty-three thousand, seven hundred twenty-two".